WO2017107515A1 - 毫米波三维全息扫描成像设备及人体或物品检查方法 - Google Patents

毫米波三维全息扫描成像设备及人体或物品检查方法 Download PDF

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Publication number
WO2017107515A1
WO2017107515A1 PCT/CN2016/096008 CN2016096008W WO2017107515A1 WO 2017107515 A1 WO2017107515 A1 WO 2017107515A1 CN 2016096008 W CN2016096008 W CN 2016096008W WO 2017107515 A1 WO2017107515 A1 WO 2017107515A1
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WIPO (PCT)
Prior art keywords
millimeter wave
transceiver module
wave transceiver
scanning
door panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/096008
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English (en)
French (fr)
Chinese (zh)
Inventor
陈志强
赵自然
乔灵博
吴万龙
沈宗俊
王子野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nuctech Co Ltd
Original Assignee
Nuctech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nuctech Co Ltd filed Critical Nuctech Co Ltd
Priority to EP16877327.3A priority Critical patent/EP3396405B1/de
Publication of WO2017107515A1 publication Critical patent/WO2017107515A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/005—Prospecting or detecting by optical means operating with millimetre waves, e.g. measuring the black losey radiation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/887—Radar or analogous systems specially adapted for specific applications for detection of concealed objects, e.g. contraband or weapons
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00

Definitions

  • the invention relates to the technical field of security inspection, in particular to a millimeter wave three-dimensional holographic scanning imaging device and a method for inspecting a human body or an article by using a millimeter wave three-dimensional holographic scanning imaging device.
  • the human body security inspection equipment mainly includes an X-ray backscattering human body imaging device and a millimeter wave human body imaging device. X-ray backscattering human body imaging equipment uses X-rays incident on the surface of the human body to scatter the signal for imaging. Since X-rays have ionization properties, they are susceptible to public questioning in terms of safety.
  • Millimeter wave human imaging equipment mainly includes active and passive.
  • the image quality of active millimeter wave imaging is obviously better than passive imaging.
  • the good imaging effect ensures high recognition rate of contraband. Therefore, active millimeter wave human security equipment has gradually become the mainstream development direction of human security equipment.
  • the active millimeter wave imaging technology is based on holographic imaging technology.
  • cylindrical scanning imaging technology In the active millimeter-wave three-dimensional holographic imaging technology applied to human body security, cylindrical scanning imaging technology is widely used, but its equipment covers a large area and it is difficult to complete the imaging of the object to be measured.
  • An object of the present invention is to provide a millimeter wave three-dimensional holographic scanning imaging apparatus capable of rapidly and efficiently performing millimeter wave three-dimensional holographic scanning imaging on each side of an object to be measured such as a human body or an article.
  • the object of the present invention is also to provide a method for inspecting a human body or an article by using a millimeter wave three-dimensional holographic scanning imaging device, which can realize comprehensive, convenient and quick inspection, and is particularly suitable for each safety inspection of a human body or an object.
  • Embodiments of the present invention provide a millimeter wave three-dimensional holographic scanning imaging apparatus, including:
  • the first millimeter wave transceiver module comprising a first millimeter wave transceiver antenna array for transmitting and receiving a first millimeter wave signal and a first millimeter associated with the first millimeter wave transceiver antenna array Wave transceiver
  • the second millimeter wave transceiver module comprising a second millimeter wave transceiver antenna array for transmitting and receiving a second millimeter wave signal and a second millimeter associated with the second millimeter wave transceiver antenna array Wave transceiver
  • the first millimeter wave transceiver module being slidably coupled to the first rail device to be movable along the first rail device in a first scanning trajectory to be the first object to be tested Scanning on the side and the second side;
  • the second millimeter wave transceiver module being slidably coupled to the second rail device to be movable along the second rail device in a second scan trajectory to the object to be tested
  • the third side and the fourth side of the object to be tested are opposite to each other, the third side of the object to be tested is opposite to the first side of the object to be tested, and the fourth side of the object to be tested is second with the object to be tested Side opposite;
  • a driving device for driving the first millimeter wave transceiver module to move along the first rail device and driving the second millimeter wave transceiver module to move along the second rail device
  • first rail device extends at least along a first side and a second side of the object to be tested
  • second rail device extends at least along a third side and a fourth side of the object to be tested
  • the first scan trajectory and the second scan trajectory are both an L-shaped trajectory, an elliptical arc trajectory or a combined trajectory of a straight line and an arc.
  • the scanning direction of the first millimeter wave transceiver module and the scanning direction of the second millimeter wave transceiver module are both horizontal directions, and the first millimeter wave transceiver antenna array and the second millimeter wave transceiver The antenna arrays each extend in a vertical direction.
  • the scanning direction of the first millimeter wave transceiver module and the scanning direction of the second millimeter wave transceiver module are opposite to each other.
  • the first scan trajectory and the second scan trajectory combine to form a closed trajectory around the object to be tested.
  • a passage is provided between the first rail device and the second rail device for the object to be tested to enter and exit.
  • the driving device comprises:
  • One or more drive wheels are One or more drive wheels;
  • One or more drive belts that mesh with the drive wheels to move under the drive of the drive wheels;
  • first sliding seat and a second sliding seat wherein the first sliding seat and the second sliding seat are respectively connected to the first millimeter wave transceiver module and the second millimeter wave transceiver module and are mounted on the same transmission cable or respectively installed Different drive belts.
  • the millimeter wave three-dimensional holographic scanning imaging device further includes:
  • a housing surrounding the detection area where the object to be tested is detected, the housing being provided with a first door device and a second door device at opposite sides of the detection area, at the first A passage is provided between the door device and the second door device for the object to be tested to enter and leave the detection area.
  • At least one of the first door device and the second door device comprises:
  • sliding door panel a sliding door panel, the sliding door panel being slidable relative to the housing
  • a sliding door panel driving device capable of driving the sliding door panel to slide such that the channel is opened and after the scanning of the first millimeter wave transceiver module and the second millimeter wave transceiver module before and after scanning is completed
  • the wave transceiver module and the second millimeter wave transceiver module close the channel when scanning.
  • At least one of the first door device and the second door device comprises:
  • first sliding door panel and a second sliding door panel a first sliding door panel and a second sliding door panel, the first sliding door panel and the second sliding door panel being slidable in opposite directions with respect to the housing;
  • a door panel sliding cable having a first cable portion and a second cable portion, wherein the first cable portion and the second cable portion move in opposite directions, the first cable portion and The second cable portions are respectively connected to the first sliding door panel and the second sliding door panel, and can drive the first sliding door panel and the second sliding door panel to slide in opposite directions;
  • first pulley and a second pulley meshing with the door panel sliding cable to drive the door panel sliding cable to move, the first cable portion and the second cable portion are respectively located Both sides of any one of the first pulley and the second pulley;
  • a drive motor capable of driving at least one of the first pulley and the second pulley to rotate.
  • the housing has a first housing wall and a second housing wall, and a first millimeter wave transceiver module and a second are defined between the first housing wall and the second housing wall a scanning path of the millimeter wave transceiver module, each of the door panels having a first door panel wall and a second door panel wall, at least one of the first millimeter wave transceiver module and the second millimeter wave transceiver module being capable of being from the first door The wall and the second door wall are scanned.
  • the first housing wall is closer to the detection area relative to the second housing wall and the first door panel wall is closer to the detection area relative to the second door panel wall, the first The housing wall and the first door panel wall are at least partially transparent to the millimeter waves used by the first millimeter wave transceiver module and the second millimeter wave transceiver module.
  • the millimeter wave three-dimensional holographic scanning imaging device further includes:
  • a data processing device wirelessly or wiredly connected to the first millimeter wave transceiver module and/or the second millimeter wave transceiver module to receive from the first millimeter wave transceiver module and/or the second
  • the millimeter wave transceiver module scans data on four sides of the object to be tested and generates a millimeter wave hologram image
  • a display device coupled to the data processing device for receiving and displaying millimeter wave holographic images from the data processing device.
  • Embodiments of the present invention provide a method of inspecting a human body or an article using a millimeter wave three-dimensional holographic scanning imaging apparatus, comprising the steps of:
  • first rail device extends at least along a first side and a second side of the object to be tested
  • second rail device extends at least along a third side and a fourth side of the object to be tested
  • the method further comprises the steps of:
  • the first door device and the second door device are closed before the first millimeter wave transceiver module and the second millimeter wave transceiver module start scanning after the human body or article enters the detection area.
  • the method further comprises the steps of:
  • the first door device and the second door device of the millimeter wave three-dimensional holographic scanning imaging device are turned on, and the human body or article is removed from the detection region.
  • the method further includes the step of, after generating the millimeter wave holographic image of the human body or article, identifying whether the human body or article carries the suspect and the location of the suspect and outputs the result.
  • the above at least one embodiment of the present invention is capable of performing millimeter wave holographic imaging simultaneously on each side of the object to be measured by a double L-shaped trajectory scanning method. It can reduce the size of the equipment, improve inspection efficiency and accuracy.
  • FIG. 1 shows a schematic structural view of a millimeter wave three-dimensional holographic scanning imaging apparatus according to an embodiment of the present invention
  • FIG. 2 shows a schematic diagram of a driving device of a millimeter wave three-dimensional holographic scanning imaging apparatus according to an embodiment of the present invention
  • Figure 3a shows a schematic front view of a door arrangement of a millimeter wave three-dimensional holographic scanning imaging apparatus in accordance with an embodiment of the present invention
  • Figure 3b shows a schematic plan view of a sliding door panel of a door device of a millimeter wave three-dimensional holographic scanning imaging device in accordance with an embodiment of the present invention
  • Figure 3c shows a schematic top view of a door arrangement of a millimeter wave three-dimensional holographic scanning imaging apparatus in accordance with an embodiment of the present invention
  • 4-6b illustrate the shape of an exemplary scan trajectory of a millimeter wave transceiver module
  • FIG. 7 shows a flow chart of a human body or article inspection method in accordance with an embodiment of the present invention.
  • FIG. 1 schematically illustrates a millimeter wave three-dimensional holographic scan imaging apparatus 100 in accordance with an embodiment of the present invention.
  • the millimeter wave three-dimensional holographic scanning imaging apparatus 100 may include: a first millimeter wave transceiver module, the first millimeter wave transceiver module including a first millimeter wave transceiver antenna array 11 and a device for transmitting and receiving a first millimeter wave signal a first millimeter wave transceiver 101 associated with the first millimeter wave transceiver antenna array 11; a second millimeter wave transceiver module, the second millimeter wave transceiver module including a second millimeter wave for transmitting and receiving a second millimeter wave signal a transceiver antenna array 12 and a second millimeter wave transceiver 102 associated with the second millimeter wave transceiver antenna array 12; a first rail device 103, the first millimeter wave transceiver module 101 is slidably coupled to the The first rail device
  • the second side 22 of the object is opposite; and a driving device 30 for driving the first millimeter wave transceiver module 101 to move along the first rail device 103 and drive the second millimeter wave transceiver module 102 along the
  • the second rail device 104 moves.
  • the first rail device 103 extends at least along a first side 21 and a second side 22 of the object to be tested, the second rail device 104 extending at least along a third side 23 and a fourth side 24 of the object to be tested.
  • the first millimeter wave transceiver 101 is associated with the first millimeter wave transceiver antenna array 11, indicating that the first millimeter wave transceiver 101 is electrically connected to the first millimeter wave transceiver antenna array 11 and cooperates with each other.
  • the first millimeter wave transceiver 101 supplies a millimeter wave signal to the first millimeter wave transmitting and receiving antenna array 11 and performs signal processing on the millimeter wave signal received by the first millimeter wave transmitting and receiving antenna array 11.
  • the meaning of the second millimeter wave transceiver 102 associated with the second millimeter wave transceiver antenna array 12 should also be understood by those skilled in the art, and details are not described herein again.
  • the first scan track and the second scan track are both L-shaped tracks, that is, the first millimeter wave transceiver module and the second millimeter wave transceiver module are both along the L shape.
  • the track is scanned.
  • Each millimeter wave transceiver module is capable of scanning two adjacent sides of a subject to be tested, such as a human body or an item. In this way, the scanning range of the two millimeter wave transceiver modules can cover the four sides of the object to be tested (such as a human body or an object). This enables inspection of contraband suspects of full viewing angle without the need to rotate the object to be tested (eg, without the need for the human body to turn around) or to move.
  • the scanning mode of the double L-shaped track can adopt a rectangular track (or two
  • the combination of L-shaped rails is more suitable for human body contours and reduces the footprint of equipment. It is especially beneficial for use in places with limited space such as airports and subways.
  • the first rail device 103 and the second rail device 104 may be provided as an L-shaped track or formed from a portion of a rectangular track.
  • the scanning direction of the first millimeter wave transceiver module 101 and the scanning direction of the second millimeter wave transceiver module 102 are both horizontal directions and the first millimeter wave transceiver antenna array 11 and the second millimeter wave
  • the transceiver antenna arrays 12 each extend in a vertical direction. In the horizontal scanning mode, the vertical first millimeter wave transmitting and receiving antenna array 11 and the second millimeter wave transmitting and receiving antenna array 12 can be used to scan around the object to be tested, and the scanning track is located in a horizontal plane.
  • the scanning direction of the first millimeter wave transceiver module and the scanning direction of the second millimeter wave transceiver module are opposite to each other.
  • the first millimeter wave transceiver module and the second millimeter wave transceiver module are not in mutually opposite positions during the scanning process to reduce the first millimeter wave transceiver module and the second millimeter wave transceiver module. Interference. However, this is not essential.
  • the first millimeter wave transceiver module and the second millimeter wave transceiver module may also adopt the same scanning direction.
  • the first scan trajectory and the second scan trajectory can be combined to form a closed trajectory around the object to be tested. This ensures that the circumference of the object to be tested is completely covered by the scanning range of the first millimeter wave transceiver module and the second millimeter wave transceiver module.
  • the drive device 30 may include drive wheels 31, 32, 33, 34, a drive cable 35, a first slide 36, and a second slide 37.
  • the drive cable 35 meshes with the drive wheels 31, 32, 33, 34 to be driven by the drive wheels 31, 32, 33, 34, and the first slide 36 and the second slide 37 respectively.
  • the first millimeter wave transceiver module 101 and the second millimeter wave transceiver module 102 are connected and mounted to the transmission cable 35.
  • the drive wheels 31, 32, 33, 34 can be rotated by the drive shaft and the drive motor. Although four drive wheels 31, 32, 33, 34 are shown in FIG. 2, in the embodiment of the present invention, the number of drive wheels is not limited thereto, and one, two, three or more than four may be employed. Drive wheels. In the case of using a plurality of driving wheels, all of the driving wheels may be set as the driving wheels, or one or some of the driving wheels may be set as the driving wheels, and the remaining driving wheels are set as the driven wheels.
  • drive wheels 31 and 33 can be set to drive wheels, while drive wheels 32 and 34 are driven wheels. In the case of multiple drive wheels, these drive wheels can work independently or together.
  • a drive belt cable 35 is shown in FIG. 2, embodiments of the present invention are not limited thereto, and for example, two or more drive belt cables may be provided.
  • the first carriage 36 and the second carriage 37 may be mounted to different drive belts, respectively.
  • the first carriage 36 and the second carriage 37 can also be mounted on the same belt.
  • the first sliding seat 36 and the second sliding seat 37 are mounted on the same transmission cable, and the first millimeter wave transceiver module and the second millimeter wave transceiver module are all driven by the same transmission cable, which is beneficial for ensuring the scanning process. Synchronous movement of a millimeter wave transceiver module and a second millimeter wave transceiver module.
  • First slide 36 and The second sliding seat 37 is configured to connect the first millimeter wave transceiver module and the second millimeter wave transceiver module to the transmission cable, respectively, so that the first millimeter wave transceiver module and the second millimeter wave transceiver module can be driven by the driving wheel. Scanning is performed below.
  • the drive cable 35 can be a belt, cable or the like that is known in the art to enable the transmission function described above.
  • the transmission cable 35 provides a certain constraint for the scanning movement of the first millimeter wave transceiver module and the second millimeter wave transceiver module, for example, the first millimeter wave transceiver module and the second The millimeter wave transceiver module can only move at an equal rate.
  • the scanning motion of the first millimeter wave transceiver module and the second millimeter wave transceiver module can be independently controlled. For example, different sides or different parts of the object to be tested may need to be scanned with different degrees of fineness, which may balance the accuracy and efficiency of the detection.
  • the first millimeter wave transceiver module and the second millimeter wave transceiver module can be scanned at different speeds.
  • the speed of the drive cable 35 in the scan may be constant or variable, and the latter may implement variable speed scanning of the first millimeter wave transceiver module and the second millimeter wave transceiver module to provide more detection work. Flexibility.
  • the first millimeter wave transceiver module and the second millimeter wave transceiver module can also be moved in the same or reverse scan by limiting the direction of movement of the drive cable.
  • the first rail assembly 103 and the second rail assembly 104 form an integral rectangular ring rail.
  • Figure 2 also shows the fixtures 81, 82, 83 and 84 at the four corners of the rectangular ring rail.
  • the fixing devices 81, 82, 83 and 84 can be used to fix the first rail device 103 and the second rail device 104 to the housing 1 of the millimeter wave three-dimensional holographic scanning imaging device 100 to hold the first rail device 103 and the first The two rail devices 104 are stable.
  • the driving device 30 shown in FIG. 2 may be disposed only on the top or bottom of the casing 1 of the millimeter wave three-dimensional holographic scanning image forming apparatus 100. It is also possible to provide the same driving device 30 on the top and bottom of the housing 1 of the millimeter wave three-dimensional holographic scanning image forming apparatus 100, respectively, to improve the stability of scanning.
  • the millimeter wave three-dimensional holographic scan imaging apparatus 100 may further include a data processing device 107.
  • the data processing device 107 is wirelessly or wiredly connected to the first millimeter wave transceiver module and/or the second millimeter wave transceiver module to receive the object to be tested from the first millimeter wave transceiver module and/or the second millimeter wave transceiver module Scan the data on the four sides and generate a millimeter wave hologram.
  • the millimeter wave three-dimensional holographic scan imaging apparatus 100 may further include a display device 109. Display device 109 is coupled to data processing device 107 for receiving and displaying millimeter wave holographic images from data processing device 107.
  • data processing device 107 can be used to generate a control signal and send the control signal to drive device 30 to drive the first millimeter wave transceiver module and/or the second millimeter wave transceiver module to move.
  • the millimeter wave three-dimensional holographic scan imaging apparatus 100 may also include a control device 40 that is separate from the data processing device 107.
  • At least one of the first millimeter wave transmitting and receiving antenna array 11 and the second millimeter wave transmitting and receiving antenna array 12 is provided with a column of transmitting antennas and a column of receiving antennas arranged offset from each other.
  • the column receives the day
  • the line may be arranged in parallel with the column of transmitting antennas but offset by half the size of the antenna in the vertical direction.
  • the millimeter wave transceiver system adopts a step frequency continuous wave scanning method, the frequency scanning range can be 27-33 GHz, and the frequency scanning points are determined by the maximum imaging distance.
  • the millimeter wave source can generate two millimeter wave signals, one as a transmission signal, and emit millimeter waves through the amplifier and the transmitting antenna; One channel is used as a reference signal, mixed with the millimeter wave signal received by the receiving antenna, and millimeter wave holographic data is obtained by I/Q demodulation.
  • the first millimeter wave transceiver module and the second millimeter wave transceiver module can employ the same millimeter wave scanning frequency.
  • the first millimeter wave signal and the second millimeter wave transmitted and received by the first millimeter wave transceiver module can use different frequencies.
  • the first millimeter wave transceiver antenna array and the first millimeter wave transceiver module in the first millimeter wave transceiver module are scanned during the scanning of the object to be measured together with the first millimeter wave transceiver module and the second millimeter wave transceiver module
  • the second millimeter wave transceiver antenna array in the two millimeter wave transceiver module emits millimeter waves at different times, that is, the millimeter waves are not simultaneously emitted. This can also weaken or avoid signal interference between the first millimeter wave transceiver module and the second millimeter wave transceiver module.
  • the millimeter wave three-dimensional holographic scanning imaging apparatus further includes: a housing 1 surrounding the detection area 18 where the object to be tested is detected, the housing 1 is in the The first door device 51 and the second door device 52 are disposed at opposite sides of the detecting area 18, and the object to be tested enters and leaves the detecting area 18 between the first door device 51 and the second door device 52. Channel.
  • the housing 1 and the structure of the first door device 51 and the second door device 52 on the one hand, it is possible to provide a closed environment for receiving the object to be tested (for example, a human body or an object), and on the other hand, it is convenient for the object to be tested to enter. And leaving the detection area 18.
  • the scheme of front entrance, side body scanning, and turning out of the person to be inspected is adopted, and when the first door device 51 and the second door device 52 are set, when the human body is inspected The inspection personnel only need to enter the front side and go out on the front side without the need for additional turning, which simplifies the security inspection process.
  • At least one of the first door device 51 and the second door device 52 includes a sliding door panel 61, 62 that is slidable relative to the housing 1; and a sliding door panel drive a device 70 capable of driving the sliding door panels 61, 62 to slide such that the object to be tested enters and exits the detection region before and after the scanning of the first millimeter wave transceiver module and the second millimeter wave transceiver module
  • the first door device 51 and the second door device 52 includes a first sliding door panel 61 and a second sliding door panel 62, the first sliding door panel 61 and the second sliding
  • the door panel 62 is slidable in opposite directions with respect to the housing 1; the door panel slides the cable 71, and the door panel sliding cable 71 has a first belt a cable portion 711 and a second cable portion 712, wherein the first cable portion 711 and the second cable portion 712 move in opposite directions, and the first cable portion 711 and the second cable portion 712 are respectively
  • the first sliding door panel 61 and the second sliding door panel 62 are connected to drive the first sliding door panel 61 and the second sliding door panel 62 to slide in opposite directions; the first pulley 73 and the second pulley 74, the first pulley 73 and The second pulley 74 meshes with the door panel sliding cable 71 to move the door panel sliding cable 71, and the first cable portion 711 and the second cable portion 712 are
  • the first sliding door panel 61 and the second sliding door panel 62 are respectively located inside the adjacent portion of the housing 1 to The passage for the object to be tested to enter and leave the detection area 18 is opened.
  • the driving motor drives the first pulley 73 and the second pulley 74, and the first sliding door panel 61 is driven by the door sliding cable 71.
  • the second sliding door panels 62 are respectively moved to the left and right to close the passage. After the scanning is completed, the first sliding door panel 61 and the second sliding door panel 62 are opened again, and the opening direction is opposite to the closing direction.
  • the housing 1 can have a first housing wall 91 and a second housing wall 92 defining a first millimeter wave between the first housing wall 91 and the second housing wall 92 a scanning path of the transceiver module 101 and the second millimeter wave transceiver module 102, each of the sliding door panels 61, 62 having a first door panel wall 611, 621 and a second door panel wall 612, 622, the first millimeter wave transceiver module 101 At least one of the second millimeter wave transceiver module 102 can be scanned through the first door panel walls 611, 621 and the second door panel walls 612, 622.
  • the double wall structure of the housing 1 and the sliding door panels 61, 62 enables the first millimeter wave transmitting and receiving antenna array 11 and the second millimeter wave transmitting and receiving antenna array 12 to be performed in a substantially closed path during scanning. This can prevent the object to be tested (such as the detected person) from touching the millimeter wave transmitting and receiving antenna, and can also prevent the detected person from being dizzy because the scanning speed of the first millimeter wave transmitting and receiving antenna array 11 and the second millimeter wave transmitting and receiving antenna array 12 is fast.
  • the first housing wall 91 is closer to the detection region 18 relative to the second housing wall 92 and the first door panel walls 611, 621 are closer to the second door panel wall 612, 622.
  • the first housing wall 91 and the first door panel walls 611, 621 are at least partially transparent to the millimeter waves used by the first millimeter wave transceiver module and the second millimeter wave transceiver module. This can reduce the attenuation of the millimeter wave signal.
  • the first housing wall 91 and the first door panel walls 611, 621 may be fabricated using a polyethylene material.
  • the door panel slide cable 71 can be a belt, cable, etc., as known in the art that can be used to implement the transmission functions described above.
  • a waiting area 17 for the object to be tested to be detected may be disposed outside the first door device 51, and a determination area 19 may be provided outside the second door device 52, in the determination area 19, The inspection result can also be verified by manual inspection of the object to be tested.
  • the millimeter wave three-dimensional holographic scanning imaging apparatus is described by taking an L-shaped scanning trajectory as an example in the above embodiment, but the embodiment of the present invention is not limited thereto.
  • the scanning trajectory of the module and the scanning trajectory of the second millimeter wave transceiver module may also be an elliptical arc trajectory (for example as shown in FIG. 4) or a combined trajectory of a straight line and an arc (for example, as shown in FIG. 5). In the example shown in FIG.
  • each of the first rail device 103 and the second rail device 104 respectively have elliptical arc shapes which are combined to surround the circumference of the area occupied by the object to be tested (as shown by the footprint in FIG. 4).
  • each of the first rail device 103 and the second rail device 104 is a combined trajectory composed of a combination of a linear trajectory and a circular trajectory.
  • a straight track is used to scan the front side of the object to be tested (for example, a human body)
  • a circular track is used to scan the side of the object to be tested (for example, a human body).
  • a channel 131 or 132 for access to and from the object to be tested may be provided between the first rail device 103 and the second rail device 104, as shown in Figure 6a or 6b.
  • the channel 131 or 132 may be disposed at a position that is not opposite to the object to be tested so as not to affect the complete scanning of the respective sides of the object to be measured by the first millimeter wave transceiver module and the second millimeter wave transceiver module.
  • the embodiments of the present invention are not limited to two millimeter wave transceiver modules, and more millimeter wave transceiver modules may be used for the object to be tested. Scanning can be performed, for example, by using a millimeter wave transceiver module for each side of the object to be tested.
  • the present invention also provides a method of inspecting a human body or an article using a millimeter wave three-dimensional holographic scanning imaging apparatus, as shown in Fig. 7 (the step indicated by a dashed box in Fig. 7 is an optional step).
  • the method includes:
  • Step S1 The human body or the article is brought into the detection area, and the first millimeter wave transceiver module and the second millimeter wave transceiver module are respectively placed at respective scanning start positions;
  • Step S2 driving the first millimeter wave transceiver module and the second millimeter wave transceiver module to drive from the respective scan start positions along the first rail device and the second rail device to respective scan end positions by means of the driving device to complete the pair Scanning of the four sides of the human body or article to obtain four planar holographic data;
  • Step S3 transmitting, during the scanning process and/or after the scanning, the holographic data of the four planes obtained by the first millimeter wave transceiver module and the second millimeter wave transceiver module during the scanning process to the data processing device;
  • Step S4 reconstructing the four plane holographic data by using a data processing device to generate a millimeter wave holography image of the human body or article.
  • the first rail device extends at least along a first side and a second side of the object to be tested
  • the second rail device extends at least along a third side and a fourth side of the object to be tested.
  • the method may further include:
  • Step S5 opening the first door device and the second door device of the millimeter wave three-dimensional holographic scanning imaging device before the human body or the article enters the detection region;
  • Step S6 The first door device and the second door device are closed before the first millimeter wave transceiver module and the second millimeter wave transceiver module start scanning after the human body or the article enters the detection region.
  • the human body or the article can be quickly moved in and out of the detection area. This It is very beneficial for personnel security inspections in airports, railway stations and other places where people are concentrated.
  • the method may further include:
  • Step S7 After the scanning of the first millimeter wave transceiver module and the second millimeter wave transceiver module is finished, the first door device and the second door device of the millimeter wave three-dimensional holographic scanning imaging device are turned on, and the human body or the article is removed from the detection region. Move out.
  • the method may further include:
  • Step S8 After generating the millimeter wave holography image of the human body or the article, identify whether the human body or the article has the suspect and the position of the suspect and output the result.
  • the identification of the suspect and its location can be performed by computer automatic recognition or manual recognition or a combination of the two.
  • the result output can be realized by, for example, displaying a figure of the person marked with a suspicious area on the display device 109 or directly indicating whether or not there is a suspect, or the detection result can be directly printed or transmitted.
  • the security personnel performing the test may confirm whether the human body or the article has the suspect and the location of the suspect according to the detection result given in the above step S8, or may perform the review by manual inspection.
  • steps S5 to S8 are methods of inspecting a human body or an article using a millimeter wave three-dimensional holographic scanning imaging device according to an embodiment of the present invention.
  • the method of inspecting a human body or an article using a millimeter wave three-dimensional holographic scanning imaging apparatus helps to quickly identify suspects and prevent safety risks, which is required in applications such as airports and customs that need to quickly determine security risks. Especially beneficial.

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  • Engineering & Computer Science (AREA)
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  • Radar, Positioning & Navigation (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Radar Systems Or Details Thereof (AREA)
PCT/CN2016/096008 2015-12-23 2016-08-19 毫米波三维全息扫描成像设备及人体或物品检查方法 Ceased WO2017107515A1 (zh)

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EP16877327.3A EP3396405B1 (de) 2015-12-23 2016-08-19 Vorrichtung zur dreidimensionalen holographischen scan-bildgebung mit millimeterwellen und inspektionsverfahren für menschlichen körper oder objekt

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